CVE-2026-80857
fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free The abort_on_kill path in request_wait_answer() calls fuse_abort_conn() and returns without waiting for FR_FINISHED. If fuse_dev_do_write() is concurrently processing the same request (FR_LOCKED set), the caller frees req->args while it is still being accessed, causing a use-after-free. Fix this by jumping to the existing wait_event(FR_FINISHED) instead of returning early. The wait will not hang because fuse_abort_conn() ensures all requests are ended.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 4, 2026 |
| Last Updated | Sep 7, 2026 |
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Affected Versions
Linux / Linux
0c7fca880a40a209a9c92be14143996d14b93ff6 < a8bbb2a60513bf322170903c21462f0bf4f62be2 204aa22a686bfee48daca7db620c1e017615f2ff < 715cb86e33cda43f5224cdc3fd5610c0b6a46f7a 204aa22a686bfee48daca7db620c1e017615f2ff < 64b0b5cacbd2fea88001464cb712c9dfc795b26e 300e812b882a174dca675d8028684001ad5826bc 6.18.25 < 6.18.50 7.0.2 < 7.1
Linux / Linux
7.1